Lighting device for oven-burners.



J. F. SKOOG. LIGHTING DEVICE FOR OVEN BURNERS. APPLICATION FILED JAN. 16, 1914.

1,1 13,498. Patented Oct. 13, 1914.

m /0 I I I 7', 9 13 q a 1 a Wan mom gas so conducted might be picked up 5 verse-. o'srrents.

50 tom of the oven being removed.

moose s reets i err'snftr osmosi- JOHN F. SKOQG, OF ERIE, PENNSYLVANIA, ASSIGNDR 'lt) EBIEZ STOVE EultiAlTUFAU- TUBING COMPANY, OF ERIE, PENNSYLVANIA, A CORPORATIGH'QF PENNSYEVANIA.

LEGHTXNG DEVICE 3361?; (BVENBURNERS.

Stocifieation of Letters Eatent.

Patten-ted Got. 1351314..

itppliestion filed January 16, 281-1. Serial No. 312,660.

To all whom it may concern Be it known not I, JOHN F. Snooo, a citizen of the Uhited States, residing; at Erie, in the county of Erie and State of 5 Pennsylvania, have invented new and useful Improvements in .Lighting Devices for 0venl8ni'ners, of which the following is a specification. I I

This invention relates to lighting devices It} for oven burners and consists in certainnnprovernents 111 tile-CODSi3H1Ctl0ll thereof as will be hereiiisfter fully described and pointed out in the cieims.

In the use ofoovens hesteci by gas burners 1-5 there is (isngerof explosion in lighting the 20 the oven burners from the oven.

Devices have heretofore been jmecle for lighting burners wherein a part of the gas is tnrhed from the burner and conducted to a. point in the oven at which point tile .3 the fieine end'cerricd back to the burners. This method- While admirable in many respects is apt to foil Where'there is a strong draft or. current ofisir. The reason for this 30 is that the burners carrying the gas mixture must to form proper burners have. such free discharge of the mixture osto preclucie the delivery. of the mixture to the lighting devices st siich pressure as to overcome ad- Furthermore, the delivery of gas directly from the burner is oft-such mixture es to often retold the carrying heck of the flame from the point of lighting to the burners. and inasmuch as gas 40 is, escaping from the burners during this.

retardation explosions of moreor less vioience are encountered. r The object of this invention is to improve lighting devices especisliy with relation to 45, the defects heretofore noted.

The invention is illustrated in'the sccompanying drowings as follows z- Figure 1 shows ahorizontei section. of an oven on the line 11 in Fig. 2, the hot- Fig. 2 a front elevation of the oven, the door being open. Fig'fg a section on the line 3-3 in i; Fig. 4 a perspective view of the gas is delivere by woyofjs.

lighting tube. Fig. 5 a plan view portly in SGC'EIOIT of the lighting tube.

1 marks the oven chamber, 2 the oven Ieioor, 8 the oven bottom, and. 4;, i the oven hurners. These burners have the jet openings 5. These may be orrangetl toward the bottom of the burner or toward the top desired. Gas is delivered bytsvsy of the pipe 6, valve 7 the usuol mixers 8-, 8 being provided, one for each burner. As shown these burners extend from ifront to rear out it will he understood that the burners may be arranged. from sideto siiie or in any direction desired.

"*Thelighting tube 9' has the-cross exten; sions i0, i0 msiringthe tube as s- Whole T shaperh Thetube hes the jet ends 11. and

these are so located. as to throw a jet around the bottoms ot the burners 44-,so as to direct 5, Home to each of the rowsof jet 0 enings 5. The cross arms 10-41) have a sit l2 exteniing through the wells of the tube anti the tube 9 has'the slit 13. entench ing from the. slit 12 through the Wells of the tube 9, the slit-s12 and 13 extending through the-top surface. The slit 13 terminates within the Walls of the-hose of the oven so as to be inaccessible. from. without the oven '(seeFig. 3).

The mixture for the lightingoievi ce is delivered through an anxiherytsbe is s :i-nngecl beside the lighting-tithe ,9: Atransverse connection Iii-extends from, the tube 14 the tube 9 and this trsnsverse consection is preferably about the middle of the tube 9 sothat the mixtureis deflected and moves in hoth directions from his trans ,verse connection 15. A m-h rer 1'6, is pro viziecl for the auxiliary tube;

i sncl. the

connection 18 from the pipe'ti;

A gas conductor '19 .issrm portion of the slit 13 and esten oven simmer. The purpose 0* cinctoiris to take the gas or nit-tats: echoing from the lighter tube aniifz'oeirryit to the oven chamber proper Where the gas may be lighted the flame flotshingbs-ck to the lighting tube. This conductor isclosed on the top so that anything dropping in the oven may not drop on theslit 13. The bottom of this oomiuctor is spaced from the lighting tube forming a space 28 so that the flame as it flashes back in the conductor, 19 to theslit 13 directly under the conductor may run from Within the conductor along the slit 13 so that the flame may be carried to the ends '11; I g

In the operation of the devicethe oven door is opened, the gas turned on to the lighter, the gas lighted at the opening at the upper end ofthe opening in front of the conductor 19, the conductor extending through the opening 21 in the'bottom of the oven for this purpose. The gas'flashes along the lighting'tube to the ends 11 and as the gas is turned on the burners l, the fuel in these burners is ignited. After the gas from the oven burners is ignited the gas is turned oil' the lighting tube, thus excluding any flow of gas to the oven through openings or otherwise to the oven.-

By'providing a separate gas supply to the lighting tube the supply can be so proportioned tothe burner slit and the tube as to make a strong flame of considerable pressure but of small extent. This kind of flame difl'ers entirely from the proper flame for an oven burner and such a flame will con tinue to exist irrespective of adverse air currents so that the lighting device operates positively under all conditions. Furthermore, there is no danger of carrying gas from the oven burners by Way of the'lighting device to the oven, the ends of the lighting device being in such position as to get ev lighting device gas is distributed throughout the lighting device so that there is no rlifliculty in lighting it even when under considera'lfle pressure at the conductor.

13y supplying the lighter tube with fuel independently otthe burners the lighter tube is arranged outside the space between the burner and the oven chamber so that it does not interfere with the even heating ot i flame to the oven burner; and means for supplying fuel to the lighter tube independ entl of the oven burner.

3. The combination of an oven chamber; an oven burner adapted to heat the oven chamber; a lighter tube to carry iiame to the oven burner; a gas conductor leading from the lighter tube to the oven chamber and accessible for lighting only from the oven chamber; and means for supplying fuel to the lighter tube independently of the oven burner.

3. The combination of an oven chamber; an oven burner adapted to heat the chamber; 11 lighter tube adapted to carry flame to the burner; means for supplying fuel to the lighter tube in a direction transverse to the axis of said tube and independent of the oven burner; and a conductor leading from the lighter tube to the oven chan'ibcr.

4. The combination of an oven chamber; an oven burner adapted to heat the oven chamber a lighter tube adapted to carry flame to the burner; a conductor leading from the lighter tube to the oven chamber, said conductor being spaced from the lighter tube to permit thetransicr of flame from Within the conductor to without the conductor along the lighter tube.

5. The combination of an oven chamber; an oven burner adapted to heat the oven chamber; a lighter tube adapted to convey flame to the'burner; an auxiliary tube for supplying fuel to the lighter tube, said auxillary tube being ar1 ':'u1gcd 1n direction parallel to the lighter tube; a transverse' connection between theauxiliary tube and the lighter tube; means for supplying fuel to the auxiliary tube; and'a conductor leading from the lighter tube to the oven chamher.

(5. The. combination of an oven chamber; an oven burner adapted to heat the oven chamber; a lighter tube terminating at a point outside the space between the burner and the oven chamber and accessible for lighting only Within the oven chamber; and means for supplying fuel to the lighter tube independently of the oven burner.

7. The combination of an oven chamber; an oven burner adapted to heat the oven chamber; a lighter tube accessible for lighting from the oven and adapted to carry flame to the oven burner; and means for supplying f el to the lighter tube independently of the oven burner.

In testimony whereof I have-hereunto set in) hand in the presence of two subscribing B. M. Han'riuaN, V. C. Hnss. 

